It is grouped into 23 pairs of chromosomes, half of which come from the mother and the other half from the father. Two of these chromosomes, the X and the Y, determine the person’s sex.
Each chromosome is made up of more than 25.000 genes, which act as units of information that determine the hair colour, the skin type, the number of white blood cells and countless other aspects…
DNA is represented by 4 lettres, correponding to each of the nucleotides to which they make reference: adenine (A), tyimine (t), cytosine (C) and guanine (G).
Throughout the genome alterations take place in these “letters”. Those alterations are known as SNP (single-nucleotide polimorphism).
Our genetic test analyses what are known as SNPs. SNPs are small variations that we all have in the way our genes give instructions to our body and that make us unique. In other words, they are changes in these 4 letters of the genetic alphabet: ATCG (scientifically known as nucleotides) and that directly affect how the body makes these proteins that then have to work for us.